Outboard motor

An outboard motor comprising a swivel case axially and steerably supporting a propulsion unit, a pair of left and right stern brackets disposed on left and right sides of the swivel case and supporting the swivel case in a vertically tiltable manner via a tilt shaft, and an upper pivot shaft and a lower pivot shaft that are parallel to the tilt shaft and are provided in the swivel case and the left and right stern brackets respectively, upper and lower end portions of an extendable part of a tilt system being mounted on the upper and lower pivot shafts,

• wherein the upper pivot shaft is provided with first and second mounting parts that are offset in mutually opposite left and right directions from a central position between the pair of stern brackets, the offset of the second mounting part is set smaller than the offset of the first mounting part, and the upper end portion of the extendable part of the tilt system is mounted selectively on one of the first and second mounting parts according to the type of tilt system.